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New Member

ISDN E1 PRI VOIP

I am configuring an ISDN E1 PRI Connection

(1/2 Port Channelized T1/E1 PRI Network Module)

When I configure the E1 controller example add the framing and pri-group timelots in the E1 controller. The voice port {voice-port 1/0:15 in my case}is not created for me to point my pots dial-peers.when I do a show voice port summary its not shown but when i do a show ip interface brief serial 1/0:15 is up. The conclusion is its not creating the voice port after I have entered the pri-group timeslots command. Please help. Thanks

7 ACCEPTED SOLUTIONS

Accepted Solutions

Re: ISDN E1 PRI VOIP

Hi,

It is possible that PVDMs are not installed. So, with the command suggested by Nick will show us if this is the problem.

Best regards,

- Adrián.

Re: ISDN E1 PRI VOIP

Yes, as expected you do not have any DSPs.

If you don't have the PVDM2-X parts, you will not be able to run your voice PRI.

Check out this DSP calculator for details:

http://www.cisco.com/cgi-bin/Support/DSP/cisco_prodsel.pl

My guess is that you'll need a PVDM2-32 or higher for this to work.

hth,

nick

Re: ISDN E1 PRI VOIP

The 'show diag' does not show any DSPs. They are enabled by default, and you can check their status with commands like 'show voice dsp detail' and 'show voice dsp group all'.

If you're not on a voice image, they may not show up.

You can check your feature set against this document:

http://www.cisco.com/en/US/products/sw/iosswrel/ps5460/index.html

hth,

nick

Re: ISDN E1 PRI VOIP

Can you send 'show diag' and 'show version'

Re: ISDN E1 PRI VOIP

Check this out:

http://www.cisco.com/en/US/prod/collateral/modules/ps2797/product_data_sheet09186a0080189f95.html

• Supports PRI for data, T1-CAS, and E1-CAS R2 signaling

This isn't a voice PRI capable card.

hth,

nick

Re: ISDN E1 PRI VOIP

I wouldn't go with the NM-HDV, they use an older model DSP.

I would stick with straight PVMD2-X and VWIC-T1 cards.

hth,

nick

Re: ISDN E1 PRI VOIP

Yes, it's a standard card with full feature support.

19 REPLIES

Re: ISDN E1 PRI VOIP

show diag?

New Member

Re: ISDN E1 PRI VOIP

Thanks again for your support

Re: ISDN E1 PRI VOIP

Yes, as expected you do not have any DSPs.

If you don't have the PVDM2-X parts, you will not be able to run your voice PRI.

Check out this DSP calculator for details:

http://www.cisco.com/cgi-bin/Support/DSP/cisco_prodsel.pl

My guess is that you'll need a PVDM2-32 or higher for this to work.

hth,

nick

New Member

Re: ISDN E1 PRI VOIP

Thanks both of you for your exceptional response I will get backed to you about it ASAP.

Have a great day guys.

New Member

Re: ISDN E1 PRI VOIP

What command must I use to enable the DSPs as Im shore they have been installed but just need to be enabled.

Re: ISDN E1 PRI VOIP

The 'show diag' does not show any DSPs. They are enabled by default, and you can check their status with commands like 'show voice dsp detail' and 'show voice dsp group all'.

If you're not on a voice image, they may not show up.

You can check your feature set against this document:

http://www.cisco.com/en/US/products/sw/iosswrel/ps5460/index.html

hth,

nick

New Member

Re: ISDN E1 PRI VOIP

Understood Thanks so much Nick.

New Member

Re: ISDN E1 PRI VOIP

There clearly are DSPs installed in the voice gateway PVDM-32 notice there a 2 groups of 16 DSP channels in my show voice dsp voice command output and when I reload the router it showing that they are comming up.

Also when I issued the pri-group time-slots command if there where no DSPs it would mention an error informing me how many DSPs are needed for the pri channels this is not happening its taking the command and showing the channels being created in the show ip int brief command but no voice-port 1/0:15 created in the show voice port summary.

I tried installing the NM-2CE1T1_PRI module in 2811 voice gateway and phsically added the PVDM-32 module still the voice-port 1/0:15 was not created.

Does the voice-port 1/0:15 rely on the service-provider signaling to be created because in my attached config the E1 is clearly up communicating with CSU/DSU at layer 2 Q921 signaling.

Please help guys. Thanks for your support I really appreciate it.

Re: ISDN E1 PRI VOIP

Hi,

It is possible that PVDMs are not installed. So, with the command suggested by Nick will show us if this is the problem.

Best regards,

- Adrián.

New Member

Re: ISDN E1 PRI VOIP

Nick mentioned they are installed by default. All I have done is insert the PVDM into the chasis and entered the command dspfarm under voice-card 0 that still didnt work. Any suggestions.

Re: ISDN E1 PRI VOIP

Can you send 'show diag' and 'show version'

New Member

Re: ISDN E1 PRI VOIP

check the attachment of the first request I sent today it has all the debugging and show version etc I will add it again here for you. Thanks

New Member

Re: ISDN E1 PRI VOIP

here you go

Re: ISDN E1 PRI VOIP

Check this out:

http://www.cisco.com/en/US/prod/collateral/modules/ps2797/product_data_sheet09186a0080189f95.html

• Supports PRI for data, T1-CAS, and E1-CAS R2 signaling

This isn't a voice PRI capable card.

hth,

nick

New Member

Re: ISDN E1 PRI VOIP

Your are right!Thank you so much Nick for your help. I truly am a big fan. Could you recommend a replacement part number. I assume I should go for NM-HDV2-2T1/E1 any suggestions.

Re: ISDN E1 PRI VOIP

I wouldn't go with the NM-HDV, they use an older model DSP.

I would stick with straight PVMD2-X and VWIC-T1 cards.

hth,

nick

New Member

Re: ISDN E1 PRI VOIP

Nick do you suggest VWIC-2MFT-E1

Re: ISDN E1 PRI VOIP

Yes, it's a standard card with full feature support.

New Member

Re: ISDN E1 PRI VOIP

Thank you once again for your support Nick.

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